Ib lub sij hawm uas koj yuav hnov thaum sib piv cov qauv sib txawv ntawm TV yog "ntug-ci LED." Cov neeg tau txais kev pab cuam ntau ntawm kev ntxhov siab thaum nws tawm mus rau ntau hom TVs muaj hnub no thiab kev siv tshuab hauv lawv. Nyob rau hauv ib feem, yog vim cov tuam txhab feem ntau txhawb cov txiaj ntsim ntawm ib qho kev siv technology yam tsis muaj kev piav qhia nws thiab muab lawv cov npe tshwj xeeb.
Ua ntej, koj yuav tsum paub tias tag nrho cov TV TVs yog hom TV LCD ; "LED" tsuas yog hais txog hom teeb pom kev zoo siv los teeb ci ntsa iab LCD pixels hauv TV. Ua qhov teeb meem tseem ceeb tshaj yog qhov tseeb uas muaj ntau tshaj ib txoj hauv kev rau lub teeb pixels. Ob qhov loj technologies yog ntug teeb thiab tag nro-array.
Edge-Lit LED
Lub TV uas yog ntug-lit yog ib cov qauv uas cov LEDs uas ci li lub LCD pixels nyob hauv cov ntug ntawm cov teeb. Cov LEDs ntsej muag mus rau hauv lub vijtsam kom pom kev.
Qhov no tso cai rau cov qauv no kom ntau thinner thiab ntais. Lawv ua qhov no ntawm cov nqi me me ntawm cov duab zoo-hauv cov cheeb tsam dub. Cov cheeb tsam dub ntawm daim duab, xws li hauv ib qho chaw tsaus ntuj thaum tsaus ntuj pom tshwm, tsis yog dub, tab sis pom ntau tshaj li grey maub vim hais tias lub teeb pom kev los ntawm ntug kev thiab ci ntsa iab qhov chaw tsaus nti ntxiv.
Nyob rau hauv ib co qauv ntawm poorer zoo ntug-lit LEDs, uniform duab zoo yuav ua tau ib qho teeb meem. Vim tias cov LEDs nyob rau ntawm cov npoo ntawm lub vaj huam sib luag, thaum koj mus rau nruab nrab ntawm qhov kev ntsuam xyuas, kev poob zoo vim tias ib yam tsis muaj teeb pom kev zoo yog tsis ncav cov pixels uas nyob deb ntawm cov npoo. Ntxiv dua thiab, qhov no tshwm sim thaum pom qhov tsaus ntuj; qhov dub raws cov npoo ntawm lub vijtsam ntau dua li dub (thiab cov ces kaum tuaj yeem ua rau lub ntsej muag zoo li ntawm lub teeb rau ntawm lub kaum sab xis).
Full-Array LED
LED-full-array hais txog cov ntawv xov tooj cua uas siv lub vaj huam sib luag ntawm LEDs tuaj yeem ua kom pom qhov pixels. Feem ntau ntawm cov kev teeb tsa no kuj muaj qhov chaw dimming, uas txhais tau hais tias cov LEDs tuaj yeem dim hauv ntau thaj tsam ntawm vaj huam sib luag thaum lwm thaj chaw tsis muaj. Qhov no yuav pab txhim kho dub theem, uas tshwm sim rau cov xim dub tshaj qhov tsaus dub.
Cov ntawv xov xwm puv ntoob (full-array televisions) feem ntau yog hnyav dua thiab hnyav dua cov qauv ntawm ntug-lit.
Edge-Lit Versus Full-Array LED
Feem ntau, tag nrho cov duab-xim LED pom tau tias yog ib qho technology thaum nws los txog rau cov duab zoo, tab sis ntug-lit teeb muaj ib qho loj kom zoo dua: qhov tob. Edge-lit LED TVs yuav ua tau ntau thinner tshaj cov lit liters nrog lub vaj huam sib luag puv nkaus lossis hluav taws xob fluorescent (non-LED) backlight. Vim li ntawd, feem ntau ntawm cov super-nyias teev koj pom hauv cov khw muag khoom yuav ci ntsa iab.
Cov tshuab twg yog txoj cai rau koj? Uas nyob ntawm seb koj xav tau.
Yog tias koj tab tom nrhiav qhov zoo tshaj plaws ua tau daim duab zoo, koj muaj feem ntau yuav pom nws nyob hauv ib cov duab kos duab full-array nrog lub zos dimming. Yog tias koj muaj kev txhawj xeeb txog qhov pom ntawm lub TV thiab xav tau ib txheej uas tsis tshua muaj nyias, ntug-lit yog tus qauv uas haum koj cov kev xav tau.